CAT24C16WI-G

Memory IC Overview

The CAT24C16WI-G is a 16-kbit (2048 x 8) serial EEPROM manufactured by onsemi. It utilizes an I2C interface supporting Standard (100 kHz) and Fast (400 kHz) protocols. The device operates within a supply voltage range of 1.7 V to 5.5 V and features a 16-byte page write buffer. It is housed in an SOIC-8 package with an industrial temperature range of -40°C to +85°C. Key electrical characteristics include a maximum access time of 900 ns, active read current of up to 2 mA, and standby current varying by voltage. The memory offers over 1,000,000 program/erase cycles and 100-year data retention.

Memory IC Feature Summary

• Supports both Standard and Fast I2C communication protocols for flexible bus integration.
• Includes hardware write protection via the WP pin to secure entire memory contents against unauthorized modifications.
• Features Schmitt triggers and noise suppression filters on SCL and SDA inputs to enhance signal integrity.
• Incorporates Power-On Reset (POR) circuitry to prevent operation during incorrect power states.

Memory IC Applications

• Embedded systems requiring non-volatile configuration storage
• Consumer electronics needing user preference retention
• Industrial control devices storing calibration data

Memory IC Procurement Notes

Verify the specific ordering suffix 'WI' confirms the SOIC-8 wide package and industrial temperature grade. Confirm RoHS compliance status as indicated in official documentation. Check for end-of-life or obsolescence notices from onsemi prior to finalizing procurement plans.

Memory IC Selection Notes

Select this component when a 16-kbit capacity is required with I2C connectivity. Ensure the system voltage falls within the 1.7 V to 5.5 V operating range. Consider the SOIC-8 package dimensions for PCB layout compatibility. Verify that the 400 kHz clock speed meets the system's timing requirements.

Memory IC Part Context

This part belongs to the CAT24Cxx family of serial EEPROMs, which includes 2Kb, 4Kb, 8Kb, and 16Kb variants. These devices share common architectural features such as the I2C interface and page write capabilities but differ in memory organization and addressable space. The CAT24C16 specifically supports addressing one device per bus using its three external address pins.

Memory IC Replacement Considerations

Compatible substitutes within the same family include CAT24C16HU4I-GT3 (UDFN-8 package) and CAT24C16YI-GT3 (TSSOP-8 package). Ensure pinout compatibility and package dimensions match the existing design before substitution.